Up-link power control experiment
Abstract
The results of an up-link power control experiment conducted by using the Japanese Medium-scale Broadcasting Satellite for Experimental Purpose are presented. It is found that the variation of up-link receiving power due to rain attenuation was kept within 0.5 dB in rms and 1.5 dB in peak during most of the time using a simple method, where the attenuation of the up-link receiving power was estimated from the receiving power of a down-link signal. It is concluded that the accuracy obtained in the experiment is enough for maintaining the required carrier to noise power ratio of the up-link and decreasing interference to other communications links by a direct wave or a rain-scattering wave from the up-link.
- Publication:
-
IEEE Transactions on Broadcasting
- Pub Date:
- December 1982
- Bibcode:
- 1982ITB....28..157Y
- Keywords:
-
- Atmospheric Attenuation;
- Domestic Satellite Communications Systems;
- Japanese Spacecraft;
- Power Conditioning;
- Transmission Efficiency;
- Uplinking;
- Atmospheric Scattering;
- Broadcasting;
- Japanese Space Program;
- Microwave Attenuation;
- Radio Relay Systems;
- Raindrops;
- Satellite Television;
- Signal To Noise Ratios;
- Communications and Radar